Author Topic: Very Easy LED Resistor Calculator  (Read 13574 times)

Offline dice

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on: January 17, 2008, 02:49:29 PM
Hey everyone,

I know not everyone know hows to calculate what resistor is needed for an IR Pen or array or what ever.
This link is a smile calculator, where you input the Source voltage, diode forward voltage, and diode forward current (mA) and it will give you the resistor that is needed w/color code.
http://led.linear1.org/1led.wiz

Hope this helps.

Dice :)



Offline bryanarby

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Reply #1 on: January 17, 2008, 03:00:40 PM
handy :3

wiipen
point ATM: building V2
V1: 1 LED on 1 AAA battery feed
V2: 1 LED on USB feed
V2 will be remodded too V3
V3: 1 LED on USB feed /w LMB and RMB
V4: 1 LED WIRELESS /w LMB and RMB
V5: we'll see :3
Vmany: Bluetooth IR pen with mouse functions.


Offline dice

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Reply #2 on: January 17, 2008, 03:10:09 PM
:)
 
Also a color code resistor calculator
http://www.dannyg.com/examples/res2/resistor.htm

Parallel Resistor Calculator
http://www.1728.com/resistrs.htm

These are very basic tools that will help people that do not know circuitry very well.

Dice :)